An item which generates a highly accurate signal of one or more fixed frequencies for calibration of frequencies from other sources. Does not include oscillator (as modified). For devices which are designed as voltage sources, see generator, signal. See also frequency meter.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 4140-00-580-8508
NSN 5835-01-581-8217
NSN 5855-00-472-2055
NSN 5960-01-352-0451
NSN 5905-01-044-2196
NSN 5999-01-388-2942
NSN 5975-01-654-0822
NSN 6685-01-603-6741
NSN 5960-00-266-6741
NSN 5950-01-354-7985
NSN 5905-01-541-4705
NSN 6220-01-012-2191